| 摘要 |
<p>A sealing device (4) for a reciprocating shaft capable of providing sufficient pressure tightness to a main lip (42) and preventing troublesomeness of assembling operation. The sealing device, which is interposed between a shaft (1) and an outer peripheral member (2), comprises a washer (41), a main lip (42) integrally bonded to a sealed space (A) side of the washer (41) and slidably brought into close contact with an outer peripheral surface (1a) of the shaft (1), an auxiliary lip (43) integrally formed in an outer peripheral side thereof, abackupring (44) fitted between an atmosphere (B) side of a slidable surface (42c) of the main lip (42) and an inner peripheral portion (41a) of the washer (41), and bearing the main lip (42) from the atmosphere (B) side and the inner peripheral side, a dust lip (45) integrally bonded to the atmosphere (B) side of the washer (41) and slidably brought into close contact with the outer peripheral surface (1a) of the shaft (1), and an outer peripheral lip (46) integrally bonded to an outer peripheral portion (41b) of the washer (41) and brought into close contact with the outer peripheral member (2).</p> |
